本文从翅片性能和总传热系数两个方面对圆形针翅式换热器的结霜性能进行了无量纲热分析。还讨论了霜层的可变导热系数。研究发现，翅片效率和翅片传热是结霜翅片临界半径、结霜厚度、针翅半径和比奥数的强函数。还确定，与矩形板翅相比，针翅的总传热系数相对降低较小。 关键词:计算、换热器、翅片管换热器、结霜、性能、传热系数、热流、厚度、热性能、导热系数。单位:SICitation:Symposium，ASHRAE Transactions 1993，第99卷，pt。1.

A nondimensional thermal analysis of the frosting performance of a circular pin fin heat exchanger in terms of fin performance and overall heat transfer coefficient is presented. Variable thermal conductivity of the frost layer was also addressed. It was found that the fin efficiency and fin heat transfer are strong functions of the critical radius of the frosted fin, the frost thickness, the pin fin radius, and the Biot number. It was also determined that the relative decrease in the overall heat transfer coefficient was less for the pin fin than for a rectangular plate fin.KEYWORDS: calculating, heat exchangers, finned tube heat exchangers, frost, performance, heat transfer coefficient, heat flow, thickness, thermal properties, thermal conductivity.Units: SI